M3.0 earthquake 45 km NNW of Atka, Alaska

A magnitude 3.0 earthquake struck 45 km NNW of Atka, Alaska on Sat, Mar 30, 2024, 3:03 AM HADT (12:03 UTC), 189 km (117 mi) below the surface.

A larger quake followed: M3.8 22 km ENE of Atka, Alaska. This one was a foreshock.

Map

Where this earthquake was located, with the others nearby. Select one for its page.

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.	Scale	Computed by	Notes
3.0	ML, local (Richter)	USGS National Earthquake Information Center	Preferred · Reviewed · ±0.097 · 14 stations
2.6	ML, local (Richter)	Alaska Earthquake Center	Preliminary

No one has reported feeling this quake to the USGS.

Reviewed by a seismologist.

Within 100 km, magnitude 1.5 and up: 75 in the 60 days after this one and 39 in the 30 days before it.

The first 60 of 75.

From the USGS Earthquake Hazards Program and its partner networks, event us6000mt4f (also filed as ak024451j4hh). Read Thu, Oct 1, 2026, 3:35 AM UTC.